RAR中AMBR值[QOS]丢失，Sy触发器无法更改策略计数器
目录
简介
本文档介绍如何对RAR中AMBR值[QOS]未命中的问题进行故障排除，以便Sy触发器更改策略计数器。
先决条件
要求
Cisco 建议您了解以下主题：
- PCRF/CPS
- 直径协议
使用的组件
本文档中的信息基于适用于PCRF的思科策略套件解决方案。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您的网络处于活动状态，请确保您了解所有命令的潜在影响。
缩写
| PCRF | 策略和计费规则功能 |
| OCS | 在线计费系统 |
| PGW | 数据包数据网络网关 |
| PB | 策略生成器 |
问题
在创建新会话后应用限制（新策略计数器状态）时，AMBR值不会应用于发送到PGW的RAR中，仅发送QCI值。
QoS-Information:
Default-EPS-Bearer-QoS:
QoS-Class-Identifier: 8
Revalidation-Time: -486962116问题分析
当您查看PCRF跟踪时，会发现OCS在SLR/SLA交换后立即发送SNR。
此SNR与SLA具有相同的Policy-Counter-Status(NoThrottle)值。
在处理SNR时，您可以看到PCRF正确加载Unlimited_AMBR表，直到这一切正常。
几分钟后，将向PCRF发送新的SNR，并更改Policy-Counter-Status（应用Throttle1）(策略 — 计数)。 当您处理此问题时，PCRF不加载Unlimited_AMBR表，因此无法获得Throttle1的AMBR值，因此不会传递到RAR中的PGW。
这些是调试日志中的一些片段，用于详细了解上述行为。
CCR-I期间正确加载的CRD表
-------- Debugging Messages --------------------------------
INFO core Tagging message with ID: GX_TGPP
INFO diameter Adding extracted AVP to policy: DiameterMessageAvp [code=QoS-Class-Identifier, value=8]
INFO core Start session triggered
INFO TGPP [Rel9] features supported on session 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org;405022273;510802;5f4efc9a-5202
INFO gx Creating new diameter session 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org;405022273;510802;5f4efc9a-5202
INFO custrefdata Adding AVP [APN_TABLE/LOGICAL_APN], value: DATA
INFO custrefdata Adding AVP [LOCATION_TABLE/LOCATION_REF], value: HOME
INFO custrefdata Adding AVP [PROFILE_TABLE/PROFILE_ID], value: PROFILE_DATA
INFO custrefdata Adding AVP [QCIREF/QCI], value: 8
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle3_AMBR_DOWN], value: 20000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle2_AMBR_UP], value: 5000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle6_AMBR_UP], value: 600000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle3_AMBR_UP], value: 20000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle4_AMBR_DOWN], value: 50000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle1_AMBR_DOWN], value: 1200000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle2_AMBR_DOWN], value: 5000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle5_AMBR_UP], value: 100000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle6_AMBR_DOWN], value: 600000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle1_AMBR_UP], value: 1200000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle5_AMBR_DOWN], value: 100000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle4_AMBR_UP], value: 50000000
INFO auth Success ALLOW_ALL authorization
INFO core Switching credential id to 53099204XXXXXX for session
INFO core domain: mobile
INFO sy Created new Sy diameter session
INFO sy Triggering synchronous SLR Message on sessioniMOD-PCRF01-qns01-1.cluster-MOD1.-Model;1597873954;1029;6862816375560209413
INFO debug-code The Sy Policy Counter Status is : NoThrottleICCR后的中等SNR
此外，CRD表加载正确，并根据从SNR接收的策略计数器选择了所需的QOS。
-------- Debugging Messages --------------------------------
INFO core Tagging message with ID: SY_V11
INFO core Successful load by key: diameterSessionKey:iMOD-PCRF01-qns01-1.cluster-MOD1.-Model%3B1597873954%3B1029%3B6862816375560209413
INFO custrefdata Adding AVP [APN_TABLE/LOGICAL_APN], value: DATA
INFO custrefdata Adding AVP [LOCATION_TABLE/LOCATION_REF], value: HOME
INFO custrefdata Adding AVP [PROFILE_TABLE/PROFILE_ID], value: PROFILE_DATA
INFO custrefdata Adding AVP [QCIREF/QCI], value: 8
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle3_AMBR_DOWN], value: 20000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle2_AMBR_UP], value: 5000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle6_AMBR_UP], value: 600000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle3_AMBR_UP], value: 20000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle4_AMBR_DOWN], value: 50000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle1_AMBR_DOWN], value: 1200000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle2_AMBR_DOWN], value: 5000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle5_AMBR_UP], value: 100000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle6_AMBR_DOWN], value: 600000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle1_AMBR_UP], value: 1200000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle5_AMBR_DOWN], value: 100000000
INFO custrefdata Adding AVP [Unlimited_AMBR/Throttle4_AMBR_UP], value: 50000000
INFO core domain: mobile
INFO Sy client Sending SNA Message on session iMOD-PCRF01-qns01-1.cluster-MOD1.-Model;1597873954;1029;6862816375560209413
INFO debug-code The Sy Policy Counter Status is : NoThrottle
INFO debug-code The Sy Policy Counter Status is : NoThrottle
RAR已发送到PGW，且QOS信息正确
Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Application Id: Gx (16777238)
Command Code: Gx_RAR (258)
Dest host: 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org
Dest realm: epc.mnc099.mcc530.3gppnetwork.org
Device protocol: GX_TGPP
End to end id: 0 (0x00000000)
Hop by hop id: 0 (0x00000000)
Origin state: 0
Stack name: null
Session-Id: 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org;405022273;510802;5f4efc9a-5202
Auth-Application-Id: 16777238
Re-Auth-Request-Type: 0
QoS-Information:
APN-Aggregate-Max-Bitrate-UL: 600000000
APN-Aggregate-Max-Bitrate-DL: 600000000
Default-EPS-Bearer-QoS:
QoS-Class-Identifier: 8
Revalidation-Time: -486962716
============================================================
接收的连续SNR
此处未为Unlimited_AMBR加载CRD表。
-------- Debugging Messages --------------------------------
INFO core Tagging message with ID: SY_V11
INFO core Successful load by key: diameterSessionKey:iMOD-PCRF01-qns02-1.cluster-MOD1.-Model%3B1597874000%3B1089%3B6862816573128705089
INFO custrefdata Adding AVP [APN_TABLE/LOGICAL_APN], value: DATA
INFO custrefdata Adding AVP [LOCATION_TABLE/LOCATION_REF], value: HOME
INFO custrefdata Adding AVP [PROFILE_TABLE/PROFILE_ID], value: PROFILE_DATA
INFO custrefdata Adding AVP [QCIREF/QCI], value: 8
INFO core domain: mobile
INFO Sy client Sending SNA Message on session iMOD-PCRF01-qns02-1.cluster-MOD1.Spark-Model;1597874000;1089;6862816573128705089
INFO debug-code The Sy Policy Counter Status is : Throttle1
INFO debug-code The Sy Policy Counter Status is : Throttle1
INFO debug-code ECGI : 530992xxxxxx
INFO debug-code IMSI : 530992041xxxxxxx
INFO debug-code CGI :
INFO debug-code Next Eval Time: 2020-09-02T10:03:05Z
INFO core domain: mobile
INFO rt Added revalidation time Wed Sep 02 03:13:00 UTC 2020
INFO gx Sending RAR Message on session 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org;405022275;511314;5f4efd58-5202在QOS信息中不带AMBR发送RAR
预期发送时QOS值会降低。
Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Application Id: Gx (16777238)
Command Code: Gx_RAR (258)
Dest host: 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org
Dest realm: epc.mnc099.mcc530.3gppnetwork.org
Device protocol: GX_TGPP
End to end id: 0 (0x00000000)
Hop by hop id: 0 (0x00000000)
Origin state: 0
Stack name: null
Session-Id: 0001-diamproxy.mod-ggsae01-gx.epc.mnc099.mcc530.3gppnetwork.org;405022275;511314;5f4efd58-5202
Auth-Application-Id: 16777238
Re-Auth-Request-Type: 0
QoS-Information:
Default-EPS-Bearer-QoS:
QoS-Class-Identifier: 8
Revalidation-Time: -486962116
============================================================此外，还查看了debug qns日志，发现由于条件为错误CCR，该表被跳过
MOD-PCRF01-qns02 MOD-PCRF01-qns02 2020-09-02 02:13:00,740 [pool-108-thread-1] DEBUG c.b.policy.impl.RulesPolicyService - Policy event: Message: com.broadhop.diameter2.messages.DiameterRequestMessage
Application Id: Sy (16777302)
Command Code: Sy_SNR (8388636)
Dest host: mod-pcrf01-lb
Dest realm: epc.mnc099.mcc530.3gppnetwork.org
Device protocol: SY_V11
End to end id: 1874920025 (0x6fc10259)
Hop by hop id: 30806209 (0x01d610c1)
Origin state: 0
Stack name: null
Origin host: sy01.mod02.bumblebee.co.nz
Origin realm: mod02.bumblebee.co.nz
Session-Id: iMOD-PCRF01-qns01-1.cluster-MOD1.Spark-Model;1597873954;1029;6862816375560209413
Auth-Application-Id: 16777238
Policy-Counter-Status-Report:
Policy-Counter-Identifier: THROTTLE
Policy-Counter-Status: Throttle1
Route-Record: sy01.mod02.bumblebee.co.nz
QPS-Internal-Route-Record-Host: mod-dsc02.epc.mnc099.mcc530.3gppnetwork.org
QPS-Internal-Route-Record-Realm: epc.mnc099.mcc530.3gppnetwork.org, no return address
. . . .
MOD-PCRF01-qns01 MOD-PCRF01-qns01 2020-09-02 02:13:00,742 [pool-109-thread-1] DEBUG c.b.c.i.CustomerReferenceDataManager - Skipping table Unlimited_AMBR since condition is false CCR此外，还研究了PB对CRD表载荷的影响。
浏览提供的SVN转储后，将找到此表的此配置：无限制_AMBR
此表的激活条件基于CCR触发器。
因此，如果您看到此CCR触发器的内容，条件是，Gx直径会话存在，命令代码为272。 Ie。CCR
因此，在没有与CCR对应的情况下，不会加载表。是的。SNR无权加载没有初始CCR [I或U]的CRD
解决方案
为SY会话添加CRD激活触发器，并执行新配置的发布。
发布此新更改后，多次尝试进行数据呼叫，并且都成功。所有连续的SNR都能够加载CRD表，并根据来自Sy的传入策略计数器更改在RAR中发送正确的QOS。
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